# In-depth survey report: concrete surface preparation tools machine 4

> field study published in 2016

**Wikidata**: [Q25930720](https://www.wikidata.org/wiki/Q25930720)  
**Source**: https://4ort.xyz/entity/in-depth-survey-report-concrete-surface-preparation-tools-machine-4


## References

1. NIOSHTIC-2
2. Source